Potamonautes (Platypotamonautes) ecorssei (Marchand, 1902) (Decapoda, Potamonautidae) new to Ghana and northern Nigeria



The West African river crab, Potamonautes (Platypotamonautes) ecorssei (Marchand, 1902) is reported to occur for the first time in Ghana and for only the second time in Nigeria. Its geographical range is extended south to include the Volta river basin in Ghana, and east to northwest Nigeria, a distance of some 1200 km.